To ensure the balance of the door, we always recommend replacing these springs in pairs.

Please be aware that these spring strengths are dictated by colour. 

Your spring may be the plain colour or silver with a coloured indicating dot. 

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GREEN Henderson Springs to suit most Double Doors. Original part number : 028563


Fits Dolphin Models from 12’6” to 14’6” WIDE

and Doric Models 8’0” to 9’0” WIDE


Number of Coils : 97

Wire Diameter : 5.6mm

Overall Diameter : 39mm

Length Excluding Hooks : 550mm

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GREY / SILVER Henderson Springs to suit most Henderson Doors. Original part number : 028532


Fits DOUBLE DOLPHIN Models from 10'2” to 12’6” WIDE

Fits MERLIN TRACKED Models 7’0” to 8’0” WIDE

Fits DORIC TRACKED Models 7’0” to 8’0” WIDE

Fits REGENT TRACKED Models 7’0” to 8’0” WIDE

Fits MERLIN TRACKED Models 7’0” to 8’0” WIDE


Number of Coils : 100

Wire Diameter : 5.5mm

Overall Diameter : 37mm

Length Excluding Hooks : 550mm

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YELLOW Henderson Springs to suit most Henderson Retractable Doors. Original part number : 028570


Fits DOUBLE DOLPHIN Models from 10'2” to 12’6” WIDE

Fits MERLIN TRACKED Models 7’0” to 8’0” WIDE

Fits DORIC TRACKED Models 7’0” to 8’0” WIDE

Fits REGENT TRACKED Models 7’0” to 8’0” WIDE

Fits MERLIN TRACKED Models 7’0” to 8’0” WIDE


Fits CLASSIC 7066 / 7070

Fits BERGEN TRACKED 7066 / 7070

Fits BERGEN CHEVRON TRACKED 7066 / 7070


Number of Coils : 99

Wire Diameter : 5mm

Overall Diameter : 37mm

Length Excluding Hooks : 533mm

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